The fact that Mr. Han could've had Param all by himself if he just didn't stupidly treat everything like a game. He thought Param would always be there for him and took his sweet time a little too much and Param got snatched by Hwi. That's what you get for being too arrogant. Play stupid game win stupid prizes.
The only details I remember from this story was the uke was playboy and the seme is kinda innocent and naive. They're living together but they're not in a relationship. There's specific scene I remember where the uke comes home with another man and the seme saw it. The uke purposely show it t seme 'cause he's grown tired of him and want him to leave his house or something and the seme saw/watched them having sex. That's the only details I remember. Please help me find it!!
Edit:I recalled more details and from what I recall, the seme genuinely like/love the seme when the scene from above happened and this was their past . I think the seme is really obsessive and confined the uke in the present. I also remember the seme buffing his body up cause he thought that's what the uke likes after he saw him having sex (he has scrawny figure in the past)
first chapter's last panel is fmu